| Floristic Survey of Hearn Gulch | ||
| May - August, 2003 | ||
| Family | Botanical Name | Common Name |
| ( * = non-native to area, bold = sensitive species) | ||
| Ferns and Fern Allies | ||
| Dennstaedtiaceae/Bracken | Pteridium aquilinum var. pubescens | Bracken, Brake |
| Dryopteridaceae/Wood Fern | Polystichum munitum | Western Sword Fern |
| Equisetaceae/Horsetail | Equisetum telmateia ssp. braunii | Giant Horsetail |
| Polypodiaceae/Polypody | Polypodium scouleri | Leather-leaf Fern |
| Pteridaceae/Brake | Adiantum jordanii (1) | California maidenhair |
| Pentagramma triangularis | Goldback Fern | |
| Conifers | ||
| Cupressaceae/Cypress | Cupressus macrocarpa * | Monterey Cypress |
| Pinaceae/Pine | Pinus muricata | Bishop Pine |
| Pseudotsuga menziesii var. menziesii | Douglas-fir | |
| Angiosperms/Dicots | ||
| Aizoaceae/Fig-marigold | Carpobrotus chilensis * | Sea Fig |
| Anacardiaceae/Sumac | Toxicodendron diversilobum | Western Poison Oak |
| Apiaceae/Carrot | Angelica hendersonii | Angelica |
| Daucus pusillus | Rattlesnake Weed | |
| Eryngium armatum | Coyote Thistle, Coast Eryngo | |
| Heracleum lanatum | Cow-parsnip | |
| Sanicula arctopoides | Footsteps of Spring, Yellow Mats | |
| Asteraceae/Sunflower | Achillea millefolium | Coastal Yarrow |
| Agoseris apargiodes var eastwoodiae | Beach Dandelion | |
| Anaphalis margaritacea | Pearly Everlasting | |
| Baccharis pilularis | Coyote Brush | |
| Carduus pycnocephalus * | Italian Thistle | |
| Cirsium vulgare * | Bull Thistle | |
| Erechtites glomerata * | Coast Fireweed | |
| Eriophyllum staechadifolium | Lizard-tail, Seaside Woolly Sunflower | |
| Gnaphalium purpureum | Purple Cudweed | |
| Grindelia stricta var. platyphylla | Gumweed | |
| Hesperevax sparsiflora ssp. brevifolia | Short-leaved Evax | |
| Heterotheca sessiliflora ssp. Bolanderi | ||
| Hypochaeris radicata * | Rough Cat's-ear | |
| Lasthenia californica | Goldfields | |
| Lessingia filanginifolia var. californica | California Aster | |
| Microseris bigelovii | Coast Microseris | |
| Picris echioides * | Bristly Ox-tongue | |
| Senecio mikanioides * | German-ivy, Cape-ivy | |
| Solidago californica | California Goldenrod | |
| Silybum marianum | Milk Thistle | |
| Sonchus oleraceus * | Common Sow Thistle | |
| Wyethia angustifolia | Narrow-leaved Mule Ears | |
| Brassicaceae/Mustard | Brassica rapa * | Field Mustard |
| Cakile maritima * | Sea Rocket | |
| Raphanus sativus * | Wild Radish | |
| Rorippa nasturtium-aquaticum * | Water Cress | |
| Boraginaceae/Borage | Plagiobothrys reticulatus | Northern Popcorn Flower |
| Plagiobothrys stipitatus var. stipitatus | Stipitate Allocarya | |
| Caprifoliaceae/Honeysuckle | Lonicera hispidula var. vacillans | California Honeysuckle |
| Caryophyllaceae/Pink | Cerastium arvense | Field Chickweed |
| Cerastium glomeratum * | Mouse-ear Chickweed | |
| Silene gallica * | Windmill Pink | |
| Spergularia rubra * | Red Sand-spurrey | |
| Convolvulaceae/Morning Glory | Calystegia purpurata ssp. saxicola | Western Morning Glory |
| Crassulaceae/Stonecrop | Dudleya farinosa | Bluff Lettuce,Live Forever |
| Ericaceae/Heath | Arbutus menziesii | Pacific Madrone |
| Gaultheria shallon | Salal | |
| Vaccinium ovatum | California Huckleberry | |
| Fabaceae/Legume | Lotus formosissimus | Coast Lotus, Witch's Teeth |
| Lotus purshianus var purshianus | Spanish Clover | |
| Lotus tenuis * | Birdsfoot Trefoil | |
| Lupinus arboreus var. arboreus | Yellow Bush Lupine | |
| Lupinus variicolor | Lindley's Varied Lupine | |
| Mellilotus officinalis * | Yellow Sweetclover | |
| Trifolium barbigerum | Bearded Clover | |
| Trifolium dubium * | Shamrock, Little Hop Clover | |
| Trifolium macraei | Twinhead Clover, Chile Clover | |
| Trifolium wormskioldii | Cow Clover | |
| Garryaceae/Silk-Tassel | Garrya elliptica | Coast Silk-tassel Tree |
| Geraniaceae/Geranium | Erodium botrys | Broad-leaf Filaree |
| Erodium cicutarium * | Red-stemmed Filaree | |
| Geranium bicknellii | Bicknell's Cranesbill | |
| Geranium dissectum * | Cut-leaved Geranium | |
| Geranium molle * | Cranesbill, Dove's-foot Geranium | |
| Hydrophyllaceae/Waterleaf | Phacelia californica | California Phacelia |
| Lamiaceae/Mint | Prunella vulgaris var. lanceolata | Self-heal |
| Satureja douglasii | Yerba Buena | |
| Stachys ajugoides var. rigida | Bugle Hedge Nettle | |
| Stachys chamissonis | Coast or Swamp Hedge Nettle | |
| Linaceae/Flax | Linum bienne * | Narrow-leaved flax |
| Malvaceae/Mallow | Sidalcea malviflora ssp. purpurea | Checker Mallow, Purple Checkerbloom |
| Myricaceae/Wax Myrtle | Myrica californica | California Wax Myrtle |
| Onagraceae/Evening Primrose | Clarkia davyi | Davy's Godetia |
| Epilobium ciliatum ssp. watsonii | Western Willow-herb | |
| Papaveraceae/Poppy | Eschscholzia californica | California Poppy |
| Plantaginaceae/Plantain | Plantago coronopus * | Cutleaf Plantain |
| Plantago erecta | Dwarf Plantain | |
| Plantago lanceolata * | English Plantain | |
| Plantago subnuda | Coast Plantain | |
| Polemoniaceae/Phlox | Navarretia squarrosa | Skunkweed |
| Polygonaceae/Buckwheat | Eriogonum latifolium | Coast Buckwheat |
| Polygonum paronchia | Dune Knotweed | |
| Rumex acetosella * | Sheep Sorrel | |
| Rumex crispus * | Curley Dock | |
| Rumex salicifolius var. crassus | Willow Dock | |
| Portulacaceae/Purslane | Calandrinia ciliata | Red Maids |
| Claytonia perfoliata | Miner's Lettuce | |
| Primulaceae/Primrose | Anagallis arvensis * | Scarlet Pimpernel |
| Ranunculaceae/Buttercup | Aquilegia formosa | Columbine |
| Delphinium hesperium | Coast Larkspur | |
| Ranunculus californicus | California Buttercup | |
| Rhamnaceae/Buckthorn | Ceanothus thyrsiflorus | Blue Blossom |
| Rosaceae/Rose | Fragaria chiloensis | Beach Strawberry |
| Rubus ursinus | California Blackberry | |
| Rubiaceae/Madder | Galium aparine | Goose Grass |
| Salicaceae/Willow | Salix lasiolepis var. bigelovii | Arroyo Willow |
| Saxifragaceae/Saxifrage | Heuchera pilosissima | Coast Alumroot |
| Scrophulariaceae/Figwort | Castilleja wightii | Wight's Indian Paintbrush |
| Mimulus auriantiacus | Sticky Monkeyflower | |
| Mimulus guttatus | Seep-spring Monkey Flower | |
| Scrophularia californica | Bee Plant, California Figwort | |
| Triphysaria eriantha ssp. rosea | Johnny-tuck | |
| Triphysaria versicolor ssp. versicolor (1) | Yellowbeak Owl's-clover | |
| Violaceae/Violet | Viola adunca | Western Dog Violet |
| Monocots | ||
| Cyperaceae/Sedge | Scirpus microcarpus | Panicled Bulrush |
| Scirpus pungens | Threesquare | |
| Iridaceae/Iris | Iris douglasiana | Douglas Iris |
| Sisyrinchium bellum | Blue-eyed Grass | |
| Juncaceae/Rush | Juncus phalocephalus var. phalocephalus | Brown-headed Rush |
| Liliaceae/Lily | Brodiaea terrestris ssp. terrestris | Earth Brodiaea, Dwarf Brodiaea |
| Smilacina stellata | Slender or Star Solomon's Seal | |
| Triteleia laxa | Ithuriel's Spear | |
| Poaceae/Grass | Agrostis blasdalei | Blasdale's Bent Grass |
| Agrostis capillaris * | Colonial Bent | |
| Agrostis densiflora | California Beng Grass | |
| Aira praecox * | Early Hair Grass | |
| Ammophila arenaria * | European Beachgrass | |
| Anthoxanthum odoratum * | Sweet Vernal Grass | |
| Avena barbata * | Slender Wild Oat | |
| Briza maxima * | Quaking Grass,Big Rattlesnake Grass | |
| Briza minor * | Quaking Grass,Little Rattlesnake Grass | |
| Bromus carinatus var. carinatus | California Brome | |
| Bromus diandrus * | Ripgut Grass | |
| Bromus hordaceus * | Cheat Grass, Soft Chess | |
| Calamagrostis nutkaensis | Pacific Reed Grass | |
| Cynosurus echinatus * | Hedgehog Dogtail | |
| Dactylis glomerata * | Orchard Grass | |
| Danthonia californica | California Oatgrass | |
| Deschampsia cespitosa ssp. holciformus | Pacific Hairgrass | |
| Holcus lanatus * | Velvet Grass | |
| Hordeum brachyantherum ssp. brachyantherum | Meadow Barley | |
| Lagurus ovatus * | Hare's Tail | |
| Lolium multiflorum * | Italian Ryegrass | |
| Lolium perenne * | Perennial Ryegrass | |
| Parapholis incurva * | Sickle Grass | |
| Poa annua * | Annual Bluegrass | |
| Vulpia bromoides * | Six-weeks Fescue | |
| Original list by Dorothy Scherer, transcribed for the web site by nj. | ||
| (1) Added by nj | ||